Home / 8,460.07-12,688.08-3,529.78

Finding the Fourth Proportional to 8,460.07, 12,688.08 and 3,529.78

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Solution

The fourth proportional to 8,460.07, 12,688.08 and 3,529.78 is: 5,293.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,460.07 : 12,688.08 = 3,529.78 : x
  2. Step 2: Convert to fraction form
    8,460.07/12,688.08 = 3,529.78/x
  3. Step 3: Cross multiply
    8,460.07x = 12,688.08 × 3,529.78
  4. Step 4: Simplify right side
    8,460.07x = 44,786,131.02
  5. Step 5: Solve for x
    x = 44,786,131.02/8,460.07
  6. Step 6: Final answer
    x = 5,293.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.